The boy band from Wyckoff, N.J. - known as Kevin, Joe and Nick to young fans - didn't start signing books until 3 p.m. Friday.

"I'm tired and hungry and out of it, but it was worth it all," Tiffany's dad said.

"I'd do it a hundred times if I had to just to see the look on my daughter's face ... This is like the Beatles times 20."

The Ramoses weren't even the biggest die-hards in the crowd.

"We've been here since 4 a.m. on Wednesday," said bleary-eyed Britney Rosen, a 16-year-old from Long Island who swapped Thanksgiving dinner for a frigid, 59-hour wait to ensure she and four friends were first in line.

Kids came from from Chicago, Maryland and New Hampshire for a little face time with the trio as they signed copies of their tour book, "Burning Up: On Tour With The Jonas Brothers."

By 7 a.m. Friday, when wristbands were handed out to the first 500 fans, the line was around the block.

"One little girl was throwing up all night and another got trampled and an ambulance was called," said Westchester County mom Bernadette Acompora, who bagged the very last wristbands for daughters Katie, 15 and Laurie, 13.